Practise MYP Standard Mathematics questions on 8.3 Histograms and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
In a relative frequency histogram, what does the area of each bar specifically represent?
Which of the following best explains why frequency density is necessary when class widths are unequal?
According to the 'Chick Masses' table in the text, how many chicks have a mass strictly greater than grams?
In a correctly constructed histogram with unequal class widths, the ________ of each bar is the specific feature that must be proportional to the frequency of that class.
Given a grouped frequency table where a specific class interval is defined as and has a frequency of , calculate the frequency density for this class.
The proportion or percentage of the total data set in that interval
The absolute count of observations in that interval
The class width multiplied by the mean
The total sum of all numerical values in that interval
To ensure the area of each bar represents the frequency
To prevent the horizontal axis from needing an axis break
To make the bars touch each other correctly
To allow the graph to use categorical data
11
5
12
6
height
area
vertical scale
diagonal length
4.5
1.5
0.33
3.0
